Meteorological Summary for September, 1S96. 



The average atmospheric pressure (reduced to sea-level and 

 32 degrees Fahr.) for the State of 'New Yiork during September 

 was 30.04 inches. The highest barometer was 30.39 inches at 

 Friendship on the 23d, and the lowest was 29.14 inches at Ithaca 

 on the 30th. The mean pressure was slightly higher in the eastern 

 than in the central and western sections. The average of the 

 mean pressure at 6 stations of the National Bureau was 0.04 

 inches below the normal, the deficiency amounting to 0.07 inches 

 at New York, and to 0.03 inches near the lakes. 



The mean temperature of the State, as derived from the records 

 of 73 stations, was 59.4 degrees. The highest local mean was 

 6.J.6 degrees at Broioklyn, and the lowest 54.3 degrees at Number 

 Four. The highest general daily mean was 74 degrees on the 

 11th, and the lowest 44 degrees on the 23d. The maximum tem- 

 perature reported was 97 degrees at Waverly on the 11th, the 

 minimum being 25 degrees at Number Four on the 23d. The 

 mean monthly range of temperature for the State was 25 degrees, 

 the greatest local range being 67 degrees at Waverly^ and the 

 least 39 degrees at Brooklyn. The mean daily range was 20 

 degrees. The greatest local daily range was 47 degrees at Friend- 

 ship on the 2d, and the least 3 degrees at Erie, Pa., on the 15th. 

 The mean temperatures of the various sections of the State were 

 as follows: The Western Plateau, 58.8 degrees; the Eastern 

 Plateau, 58.9 degrees; the Northern Plateau, 55.8 degrees; the 

 Atlantic Coast, 63.9 degrees; the Hudson Valley, 61.1 degrees; 

 the Mohawk Valley, 58.9 degrees; the Champlain Valley, 58.0 

 degrees; the St. Lawrence Valley, 58.0 degrees; the Great Lakes, 

 59.9 degrees; the Central Lakes, 60.9 degrees. The average of 

 the mean temperatures at 26 stations possessing records for pre- 

 vious years was 1.0 degrees below the normal, excesses being 

 reported from only 3 stations. 



